Adjusting tool



Dec. 13, 1927. 1,652,246

T. S. KEMBLE ADJUSTING TOOL Filed Jan. 24. 1921 i anism by which theyare well known manner.

. threaded end of the stem Patented Dec. 13, 1927.

UNITED STATES PATENT OFFICE.

THOMAS S. KEMIBLE, F CLEVELAND, OHIO.

' ADJUSTING TOOL.

Application filed lanuary 24, 1921.

The present invention relates to valve adjusting tools for the valves ofinternal com bustion engines whereby adjustment may be made to maintainthe proper working rela- 6 tion between the valve stems and themechanism by which each valve is operated.

An object of the invention is to provide a construction. in which theprocess of adjustment can be simplified beyond the ordinary method.

Reference should be had to the accompanying drawings forminga part ofthis specification in which Fig. 1 shows partly in elevation and partlyin sectional elevation a valve seat of an engine with cooperating valveand valve stem or rodof the present invention applied thereto, togetherwith one form of operating mechanism; Fig. 2 is an elevation showing oneof the members of the construction shown in Fig. 1; Fig. 3 shows in sideelevation a portion of the upper part of a valve rod with a tool bywhich adjustment may be efiected; Fig. 4 is a top plan view f theshowing in Fig. 3; Fig.

in section of vtheshowingin Fig. 3; a I In internal combustion engineswith poppet valves it is necessary tomake an adjustment between thevalve stems and the mechoperated. adjustment is used, first, to make upfor inaccuracy and second, to make up'for wear and other changes such aslapping valves and valve 1 seats in the cylinders.

The present invention provides a simple tool by which accurateadjustment of the valve'may be quickly and easily made.

Referring to the drawings, 1 indicates a portion of an automobile, moreparticularly an engine head, an opening 2 provided with a seat 3, andcooperating with the seat is a valve head 4 which may be constructed inthe usual and As will be understood, the opening 2 may be considered tobe an intake or an exhaust port for an internal combustion engine, "andthe valve 4 and valve stem which periodically is moved to permit thepassage of carbureted' air or exhaust gases as the case may be.

Thevalve head a is formed with a stem or'rod 5, which at its upper endis threaded, as indicated at 6, and cooperating with the 5 is anadjusting 5 is an end elevation with portions This I in the manufactureof the parts,"

in which there is provided. valve, that is to open,

Serial No. 439,542.

member 7. This adjusting member has an upper portion 7 which is formedwith a plurality of sides, that is to say, it may be hexagonal,octagonal, or any other similar form. The upper portion 7*- is or may beprovided with a shoulder as indicated at 7", for the reception of anoperating tool, as will later be described.

The head member 7 has a reentrant bore or opening 7, this opening beingthreaded, as clearly shown in the drawing. The outer wall of the lowerportion is slantingtoward the longitudinal axis of the member 7, or inother words is of frusto-conical shape, as indicated at 7 This portionof the member 7 which is conically shaped, as before indicated, is pro-Vided with a plurality of slots, which is indicated at 7 These slotsdivide the lower portion of member ,7 into a plurality of jaws forgripping. the threaded end of the during operation of the valve.

Surrounding the lower or conicallyshaped portion of the member 7 is awasher 8. This washer has a central opening which has a conically shapedinner wall, such as indicated at 8 the degree of slant of the wall 8,being complementary of the degree of slant of the conical portion of themember 7. The member 8 has outwardlyextending portions such as indicatedat 8 and with these outwardly extending portions the usual springs 9cooperate, the lower ends of the springs .9 being suitably supportedupon the head of the engine which is a usual an pp very well knownconstruction.

The springs 9 tend to maintain the valve in closed position and thefunctioning of the is controlled by a.

mechanism cooperating with the valve stem which in the present instanceis a rocker arm, such as shown at 10, which rocker arm is centrallypivoted, as illustrated at 11 and atone end the arm 10 is provided witha face 11, which cooperates with the member 7. Theopposite end of therocker arm 10 is pivotally connected withv a rod 12, which in turn issuitably operated by a cam shaft, or equivalent It will be obvious thatby movement of the member 7, the effective length of the valve stem 5may be adjusted with respect device, in a manner which is or may be thatcommonly employed.

to the face 11 so as to maintain the proper relationship between thesetwo cooperating parts.

In effecting an adjustment of the member 7 with respect to the valvestem 5, it is necessary to depress the washer 8 relative to the member 7and at the same time to prevent the valve stem 5 from turning, whereuponthe member 7 may be turned in the proper direction to effect the desireddegree of adjustment.

In order to provide a means by which this adjustment may be quickly andeffectively made, there is shown in Figs. 4 and 5, a tool which issuitable for the purpose. This tool comprises two members 15 and 16which are pivoted to each other by a pin which is indicated at 17. Thesemembers 15 and 16 have handles or hand engaging portions as indicated at15 and 16 and the shape and cooperation of the members 15 and 16 is suchthat the handles 15 and 16 are separated when the forward portions, orthose portions of the members 15 and 16 which lie beyond the pivot 17,are in cooperating position.

The member 15 at its forward end has a reentrant portion such asindicated at 15, the opposite side parts of which engage opposite flatsides of the enlarged portion 7 of the adjusting nut and along the loweredges of the opposite side parts of the reentrant portion there areinwardly extending flanges 15 These flanges are adapted to enter betweenthe shoulder 7 at the inner side of the portion 7 a of the adjustingmemher and the washer, the manner of their engagement being clearlyillustrated in Fig. 5. The forward extremities of the member 16 willbear upon the outer face of the washer 8 which engagement is clearlyshown in Fig.

5 and when in this position the handles 15 and 16 may be pinchedtogether by the hand of the operator which will cause the washer 8 to bedepressed with respect to the member 7, and against the action of thespring 9. This operation will of course compress the springs andincrease the pressure with which the valve 4 is held against its seatand, due to the fact that considerable friction between the engagingportions of the valve 4 and its seat 3, opposing rotation, the members15 and 16 when positioned and operated to hold the adjusting member awayfrom the washer, may be turned either clockwise or counterclockwise, andthereby cause the member 7 to turn relative to the valve stem 5, themember 16 turning upon the outer face of the washer as the adjustingmember or nut is turned. When the pressure pinching the handles togetheris released, the washer is permitted to reengage the member 7, thuslooking it in its new position relative to the valve stem.

Having described my invention, I claim:

there is 1. A tool for freeing a nut from a locking washer engagingthesame and for turning the nut while held free of its locking washercomprising means for nonrotatably engaging the nut to turn the same,andmeans con nected to said first mentioned means and coacting therewithto force the washer and nut apartand to hold the washer free of the nutand said first mentioned means in engagement with the nut, whereby saidnut may be turned while held free of the locking member. 1

2. Means for freeing a nut from a locking washer engaging the inner sideof the nut and for turning the nut while held free of its locking washercomprising a tool having a nut engaging part engageable with the innerside of the nut and adapted'to nonrotatably engage the nut, and a secondpart connected to the first part and engageable with the outer face ofthe washer, said parts being movable to force the washer and nut apartand to turn the nut while it is held free of the washer. Y i

3. A tool for freeing a nut froma locking washer engaging the same andfor turning the nut while held free of its locking washer comprising arigid member adapted to nonrotatably engage the nut to turn the same,said tool having a part'cooperating with said rigid member to press thesame against the nut and to force the nut and locking washer apart andto hold the nut and locking washer apart while the nut isbeing turned.

4. An adjusting tool for a poppet valve for internal combustion engineswhich has upon its stem at the outer end thereof a nut and a springpressed washer engaging the inner side of the nut comprising a pair ofmembers pivoted to each other, one of said pivoted members beingengageable with the washer and the other of said pivoted mem bers beingengageable with the nut whereby when the tool is applied to the nut andwasher and the pivoted members are moved about their pivotal connectionthe washer is separated from said nut, the first mentioned pivotedmember being adapted to rotate on the washer and the second pivotedmember being adapted to non-rotatably engage with the nut whereby whenthe tool is turned said nut is rotated on the stem.

5. A tool for adjusting a poppet valve having upon its stem at the outerend there of a nut and a spring pressed washer engaging the inner sldeof the nut comprlsmg p voted aws, one jaw havmg parts adapted to embracethe nut at the outer end of the valve stem and engage the inner sidethere of and the other jaw adapted to bear against the outer side of thespring pressed washer and slide thereon, whereby when the jaws areseparated the washer is disengaged from the nut and the valve is held toits seat and against rotation whereby the turned to adjust the nut onthe 6. A tool for adjusting a poppet tool may he valve stem.

valve having upon its stem at the outer end thereof a nut and a springaging the inner side a pair mg a of pivoted jaws, forked end adap g ofthe nut comprising pressed washer enone of said 1aws havted to fit overthe nut and flanges extending inwardly from the forks thereof to engagethe inner side of the 1 nut and the other jaw being adapted to bearagainst the outer face of the washer, and operating handles connected tothe jaws.

In testimony whereof, I hereunto aflix my signature.

THOMAS S. KEMBLE.

